A researcher investigated the effects of binaural beats on spatial reasoning. Using a repeated measures design, 25 participants completed a complex 3D spatial rotation puzzle while listening to classical music, and then completed the exact same puzzle while listening to binaural beats.
Explain how two different puzzles could be used in this study and why this would be an improvement.
689 exam-style questions on AQA A Level Psychology Scientific processes. Each one has a worked solution and a mark scheme showing where the marks go.